fix: Set GPU scheduler back to RR

system_files/desktop/shared/usr/libexec/bazzite-hardware-setup

@@ -7,7 +7,7 @@ IMAGE_FLAVOR=$(jq -r '."image-flavor"' < $IMAGE_INFO)
 FEDORA_VERSION=$(jq -r '."fedora-version"' < $IMAGE_INFO)
 
 # SCRIPT VERSION
-HWS_VER=30
+HWS_VER=31
 HWS_VER_FILE="/etc/bazzite/hws_version"
 HWS_VER_RAN=$(cat $HWS_VER_FILE)
 
@@ -156,6 +156,11 @@ if [[ $KARGS =~ "nomodeset" ]]; then
   NEEDED_KARGS+=("--delete-if-present=nomodeset")
 fi
 
+if [[ ! $KARGS =~ "gpu_sched.sched_policy" ]]; then
+  echo "Fixing GPU scheduler default"
+  NEEDED_KARGS+=("--append-if-missing=gpu_sched.sched_policy=0")
+fi
+
 if [[ -n "$NEEDED_KARGS" ]]; then
   echo "Found needed karg changes, applying the following: ${NEEDED_KARGS[*]}"
   plymouth display-message --text="Updating kargs - Please wait, this may take a while" || true